Certbot is EFF's tool to obtain certs from Let's Encrypt and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.: cert... github.com [online]. 2019-07-02 [cit. 2019-07-02]. Original-date: 2014-11-12T02:52:20Z. Dostupné online.